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我有这样的源文件:我的日志消息在哪里?
...
import android.util.Log;
...
public class MyActivity extends Activity
{
public static Activity activity = null;
private static final String TAG = "WorldDetermine";
private Camera mCamera;
private CameraPreview mPreview;
public final int cameraId = 0;
@Override
public void onCreate(Bundle savedInstanceState) {
Log.d("myTag", "onCreate started!");
Log.v("blah", "blah blah");
super.onCreate(savedInstanceState);
setContentView(R.layout.main); ...
,并试图获得通过logcat
日志消息。就像这样:
adb -s emulator-5554 logcat myTag:D blah:v *:S
但只有空白输出(grep也没有找到它)。我的项目由ant debug
编译正常,但我对最后一步的问题(该问题是否可以通过这种间接引起的?):
debug:
BUILD FAILED
/home/psct/development/android-sdk-linux/tools/ant/build.xml:887: The following error occurred while executing this line:
/home/psct/development/android-sdk-linux/tools/ant/build.xml:342: The following error occurred while executing this line:
/home/psct/development/android-sdk-linux/tools/ant/build.xml:334: Problem: failed to create task or type propertyfile
Cause: the class org.apache.tools.ant.taskdefs.optional.PropertyFile was not found.
This looks like one of Ant's optional components.
Action: Check that the appropriate optional JAR exists in
-/usr/share/ant-core/lib
-/root/.ant/lib
-a directory added on the command line with the -lib argument
Do not panic, this is a common problem.
The commonest cause is a missing JAR.
This is not a bug; it is a configuration problem
Total time: 4 seconds
和...这对我没有帮助 – psct 2012-03-17 21:19:04
在输出日志中,您可以看到项目中的任何现有错误(除了您自己的日志)。你可以通过标签,pid,应用程序,文本搜索它们。不需要控制台。 无论如何,你有在项目中导入apache库的问题。这就是为什么没有日志打印出来。你有没有检查过项目属性/ Java_Build_Path。尝试“添加外部JAR”并选择你拥有的apache jar文件。 “操作:检查相应的可选JAR是否存在..这是一个配置问题” – bajicdusko 2012-03-18 16:30:32
以及该文件是什么?如你所知? – psct 2012-03-19 16:24:35